<template>
    <div>
        <el-form :rules="rules" ref="loginForm" v-loading="loading" element-loading-text="正在登陆" element-loading-spinner="el-icon-loading" element-loading-background="rgba(0,0,0,0.8)" :model="loginForm" class="loginContainer">
            <h3 class="loginTitle">系统登陆</h3>
            <el-form-item prop="username">
                <el-input size="normal" type="text" v-model="loginForm.username" auto-complete="off" placeholder="请输入用户名"></el-input>
            </el-form-item>
            <el-form-item prop="password">
                <el-input size="normal" type="password" v-model="loginForm.password" auto-complete="off" placeholder="请输入密码"></el-input>
            </el-form-item>
            <el-form-item prop="code">
                <el-input size="normal" type="text" v-model="loginForm.code" auto-complete="off" placeholder="点击图片更换验证码" @keydown.enter.native="submitLogin" style="width: 250px;"></el-input>
                <img :src="vcUrl" @click="updateVerifyCode" style="cursor: pointer;" alt="">
            </el-form-item>
            <el-checkbox size="normal" class="loginRemember" v-model="checked"></el-checkbox>
            <el-button size="normal" type="primary" style="width: 100%;" @click="submitLogin"></el-button>
        </el-form>
    </div>
</template>

<script>
export default {
    name: "Login",
    data() {
        return {
            loading: false,
            vcUrl: '/verifyCode?time='+new Date(),
            loginForm: {
                username: 'admin',
                password: '123',
                code: ''
            },
            checked: true,
            rules: {
                username: [{required: true, message: '请输入用户名', trigger: 'blur'}],
                password: [{required: true, message: '请输入密码', trigger: 'blur'}],
                code: [{required: true, message: '请输入验证码', trigger: 'blur'}]
            }
        }
    },
    methods: {
        updateVerifyCode() {
            this.vcUrl = '/verifyCode?time='+new Date();
        },
        submitLogin() {
            this.$refs.loginForm.validate((valid)=>{
                if(valid) {
                    this.loading = true;
                    this.postRequest('/doLogin',this.loginForm).then(resp=>{
                        this.loading = false;
                        if(resp) {
                            this.$store.commit('INIT_CURRENTHR',resp.obj);
                            window.sessionStorage.setItem("user",JSON.stringify(resp.obj));
                            let path = this.$route.query.redirect;
                            this.$router.replace((path == '/' || path == undefined) ? '/home' : path);
                        } else {
                            this.vcUrl = '/verifyCode?time='+new Date();
                        }
                    })
                } else {
                    return false;
                }
            });
        }
    }
}
</script>

<style>
.loginContainer {
    border-radius: 15px;
    background-clip: padding-box;
    margin: 180px auto;
    width: 350px;
    padding: 15px 35px 15px 35px;
    background: #fff;
    border: 1px solid #eaeaea;
    box-shadow: 0 0 25px #cac6c6;
}

.loginTitle {
    margin: 15px auto 20px auto;
    text-align: center;
    color: #505458;
}

.loginRemember {
    text-align: left;
    margin: 0px 0px 15px 0px;
}

.el-form-item_content {
    display: flex;
    align-items: center;
}
</style>